Results 51 to 60 of about 165,980,973 (300)

Making Sense of Standardised Assessment Data: A Response to Snow et al. (2025)

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT I write in response to the commentary by Snow et al. (2025) on the paper Are Australian students' academic skills declining? Interrogating 25 years of national and international standardised assessment data published in this journal (Larsen 2024).
Sally A. Larsen
wiley   +1 more source

Posterior arterial circle of Willis anatomic variations and coronary artery dominance: is there a correlation?

open access: yesAutopsy and Case Reports, 2011
Anatomic variations and anomalies in the arteries from the circle of Willis or the heart are common, sometimes even more common than the classic morphology.
David Gonçalves Nordon   +3 more
doaj   +1 more source

Average dimensions of the vessels at the base of the brain and the embryological basis of its variations

open access: yesNational Journal of Clinical Anatomy, 2013
Background and aims: The cerebral circulation is constantly maintained by the anastomotic circle of Willis which is often anomalous in more than 50% of the normal adult brains. These anomalies increase the risk of the stroke and transient ischemic attack
S Iqbal
doaj   +1 more source

Determination of the Unilaterally Damaged Region May Depend on the Asymmetry of Carotid Blood Flow Velocity in Hemiparkinsonian Monkey: A Pilot Study

open access: yesParkinson's Disease, 2022
The hemiparkinsonian nonhuman primate model induced by unilateral injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) into the carotid artery is used to study Parkinson’s disease.
Jincheol Seo   +23 more
doaj   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

open access: yesThe Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham   +4 more
wiley   +1 more source

Constitution and By-Laws, Circle of Friends, Dallas, Texas

open access: yes, 1965
Constitution and by-laws of the Circle of Friends, a group organized "to establish and promote communication, understanding and harmony between the homophile community and the general public, to better the common welfare and secure the blessing of ...
Circle of Friends
core   +1 more source

Data on vessel wall thickness measurements of intracranial arteries derived from human circle of Willis specimens

open access: yesData in Brief, 2018
In this article, we report data on vessel wall thickness parameters derived from different arterial segments of the circle of Willis and its primary branches in patients with and without cerebrovascular disease.
Anita A. Harteveld   +10 more
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Clade‐wide morphological and functional variation of the sauropsid columella

open access: yesThe Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock   +4 more
wiley   +1 more source

Cerebral Artery Diameter in Inbred Mice Varies as a Function of Strain

open access: yesFrontiers in Neuroanatomy, 2018
Many strains of mice are utilized in mouse models of cerebrovascular diseases. Variations in vascular anatomy between these strains has been documented and may influence the phenotype in stroke models.
Baogang Qian   +6 more
doaj   +1 more source

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